Question

In: Chemistry

Given the following atomic weights, that the density of acetic acid is 1.05, and that 7.0...

Given the following atomic weights, that the density of acetic acid is 1.05, and that 7.0 g of isoamyl alcohol, 6.6 mL of acetic acid, and 0.5 mL of sulfuric acid make 3.2 g of isoamyl acetate, what is the % yield of isoamyl acetate from its limiting reagent? Give at least two significant figures.

Solutions

Expert Solution

Complete reaction is:

Volume of acetic acid = 6.6 mL

density of acetic acid = 1.05 g/mL

Mass of acetic acid = volume * density = 6.6 mL * 1.05 g/mL = 6.93 g

Molar mass of acetic acid =60.05 g/mol

Moles of acetic acid = Mass/ Molar mass = 6.93 g /(60.05 g/mol) = 0.115 mol

Mass of isoamyl alcohol = 7 g

Molar mass of isoamyl alcohol = 88.148 g/mol

Moles of isoamyl alcohol = 7 g/ (88.148 g/mol)= 0.0794 mol

H2SO4 is just a catalyst

From reaction, 1 mol of isoamyl alcohol reacts with 1 mol of acetic acid

Thus, 0.115 mol of isoamyl alcohol reacts with 0.115 mol of acetic acid

But we have 0.0794 mol of acetic acid. Thus, acetic acid is a limiting reagent.

1 mol of acetic acid produces 1 mol of isoamyl acetate

So, 0.0794 mol of acetic acid produces 0.0794 mol of isoamyl acetate

Molar mass of isoamyl acetate = 130.19 g/mol

Mass of isoamyl acetate produced = Moles * Molar mass = 0.0794 mol * 130.19 g/mol = 10.3 g

Thus, theoretical yield = 10.3 g

actual yield = 3.2 g

Hence percent yield = (Actual yield / theoretical yield )*100%

= (3.2g/ 10.3 g)*100% = 30.95 % = 31 % ( in 2 significant figures)


Related Solutions

Given the following atomic weights, that the density of acetic acid is 1.05, and that 9.8...
Given the following atomic weights, that the density of acetic acid is 1.05, and that 9.8 g of isoamyl alcohol, 7.4 mL of acetic acid, and 0.5 mL of sulfuric acid make 3.7 g of isoamyl acetate, what is the % yield of isoamyl acetate from its limiting reagent? Give at least two significant figures. C = 12, H = 1, O =16
Given the following atomic weights, that the density of acetic acid is 1.05, and that 5.1...
Given the following atomic weights, that the density of acetic acid is 1.05, and that 5.1 g of isoamyl alcohol, 8.6 mL of acetic acid, and 0.5 mL of sulfuric acid make 2.8 g of isoamyl acetate, what is the % yield of isoamyl acetate from its limiting reagent? Give at least two significant figures. C = 12, H = 1, O =16
Given the following atomic weights, that the density of acetic acid is 1.05, and that 8.7...
Given the following atomic weights, that the density of acetic acid is 1.05, and that 8.7 g of isoamyl alcohol, 5.8 mL of acetic acid, and 0.5 mL of sulfuric acid make 4.2 g of isoamyl acetate, what is the % yield of isoamyl acetate from its limiting reagent? Give at least two significant figures. C = 12, H = 1, O =16
Given the following atomic weights, that the density of acetic acid is 1.05, and that 5.3...
Given the following atomic weights, that the density of acetic acid is 1.05, and that 5.3 g of isoamyl alcohol, 7.6 mL of acetic acid, and 0.5 mL of sulfuric acid make 3.8 g of isoamyl acetate, what is the % yield of isoamyl acetate from its limiting reagent? Give at least two significant figures. C = 12, H = 1, O =16
Using the following atomic weights and that the density of cyclohexanol is 0.96, what is the...
Using the following atomic weights and that the density of cyclohexanol is 0.96, what is the % yield of a reaction that starts with 5.1 mL of cyclohexanol and ends with 2.7 g of cyclohexene? C = 12, H = 1, O = 16
Using the following atomic weights and that the density of cyclohexanol is 0.96, what is the...
Using the following atomic weights and that the density of cyclohexanol is 0.96, what is the % yield of a reaction that starts with 6.7 mL of cyclohexanol and ends with 2.3 g of cyclohexene? C = 12, H = 1, O = 16
Using the atomic weights of selected elements given below, find the formula weights for the following...
Using the atomic weights of selected elements given below, find the formula weights for the following compounds:   Atomic weights of selected elements Ca = 40 g moL-1, C = 12 g moL-1, O = 16 g moL-1, H = 1 g moL-1, P = 31 g moL-1, K = 39 g moL-1                   Si = 28 g moL-1, Al = 27 g moL-1, S = 32 g moL-1, N = 14 g moL-1 Example: (NH4)2SO4 Element no. of moles Atomic...
Given the following information: hydrocyanic acid = HCN acetic acid = CH3COOH CH3COOH is a stronger...
Given the following information: hydrocyanic acid = HCN acetic acid = CH3COOH CH3COOH is a stronger acid than HCN (1) Write the net ionic equation for the reaction that occurs when equal volumes of 0.054 M aqueous hydrocyanic acid and sodium acetate are mixed. It is not necessary to include states such as (aq) or (s). ______ + _______ = ______ + ________ (2) Which is the strongest base, CN- or CH3COO- ? (3) At equilibrium (products or reactants) the...
pH of acetic acid solutions. Remember, acetic acid is a weak acid, with a Ka =...
pH of acetic acid solutions. Remember, acetic acid is a weak acid, with a Ka = 1.8 x 10−5. Obtain 10.0 mL of 0.10 M acetic acid and place in a clean dry 50.0 mL beaker. Predict the value of the pH. Measure the pH with the pH meter. Record the value. Take 1.00 mL of the 0.10 M CH3COOH(aq) in the previous step, and put it in another clean beaker. Add 9.00 mL of deionized water and stir. What...
Given: Weight of Salicylic Acid: 1.5092g Volume of acetic anhydride: 5.00mL Weight of Acetic Anhydride: 5.4g...
Given: Weight of Salicylic Acid: 1.5092g Volume of acetic anhydride: 5.00mL Weight of Acetic Anhydride: 5.4g (density, p = 1.08g/mL) Molecular Weight of Salicylic Acid = 138.12g/mol // Acetic Anhydride 102.09g/mol Molecular Weight of acetylsalicylic acid, ASA: 180.157g/mol Weight of acetylsalicylic acid product (in experiment): 0.50g Determine the limiting reagent in the reaction: (CH3CO)2O + C7H6O3 -> CH3COOH + C9H8O4 And Calculate the theoretical yield and the actual percent yield of the asprin.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT